DE378629C - Hollow needle - Google Patents

Hollow needle

Info

Publication number
DE378629C
DE378629C DEK79882D DEK0079882D DE378629C DE 378629 C DE378629 C DE 378629C DE K79882 D DEK79882 D DE K79882D DE K0079882 D DEK0079882 D DE K0079882D DE 378629 C DE378629 C DE 378629C
Authority
DE
Germany
Prior art keywords
hollow needle
tip
tube
needle
vein
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
DEK79882D
Other languages
German (de)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Publication date
Priority to DEK79882D priority Critical patent/DE378629C/en
Application granted granted Critical
Publication of DE378629C publication Critical patent/DE378629C/en
Expired legal-status Critical Current

Links

Classifications

    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61MDEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M5/00Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
    • A61M5/178Syringes
    • A61M5/31Details
    • A61M5/32Needles; Details of needles pertaining to their connection with syringe or hub; Accessories for bringing the needle into, or holding the needle on, the body; Devices for protection of needles

Description

Hohlnadel. Wenn eine gewöhnliche Hohlnadel in die Vene eingeführt worden ist, so geschieht es sehr oft, daß bei kleinen Bewegungen des Patienten oder des Arztes die Spitze der Nadel durch die hintere Venenwand hindurchgestoßen wird und der Inhalt der Spritze nicht in die Vene, sondern in das die Vene umgebende Gewebe gespritzt wird und dann meistenteils zu ausgedehnten entzündlichen Prozesseh führt.Hollow needle. When an ordinary hollow needle is inserted into the vein has been, it happens very often that with small movements of the patient or the doctor pushes the tip of the needle through the posterior wall of the vein and the contents of the syringe not in the vein, but in the area around the vein Tissue is injected and then mostly involved in extensive inflammatory processes leads.

Um dies zu verhindern, soll nach vorliegender Erfindung die Spitze der Hohlnadel durch ein Rohr i so abgedeckt werden, daß ein Durchstoßen der hinteren Venenwand nicht möglich ist. Zu diesem Zweck ist nach der Erfindung zwischen Spritzenmündung und Hohlnadel eine Vorrichtung eingebaut, die aus folgenden drei Teilen besteht i. aus einem Kolben b, der die Hohlnadel k trägt und dessen Kopf b konisch auf den Spritzenansatz a aufzustecken ist; z. aus der Hülse c, die ein Schutzrohr i trägt und über dem Kolben b luftdicht verschiebbar ist; durch Vorschieben der Hülse c wird das Schutzrohr i über die Spitze der Hohlnadel k vorgeschoben, so daß diese verdeckt wird; 3. aus einer Arretierungsfeder c und dem Arretierungsstift d, welcher, nachdem die Hülse c vorgeschoben ist, in die im Kolben b befindliche Nut f einschnappt, um das Schutzrohr in seiner die Spitze überdeckenden Lage zu sichern.To prevent this, according to the present invention, the tip the hollow needle can be covered by a tube i so that a piercing of the rear Venous wall is not possible. For this purpose, according to the invention, between the syringe mouth and hollow needle installed a device consisting of the following three parts i. from a piston b, which carries the hollow needle k and whose head b conically on the Syringe attachment a is to be attached; z. from the sleeve c, which carries a protective tube i and is displaceable airtight over the piston b; by advancing the sleeve c the protective tube i is advanced over the tip of the hollow needle k, so that this is covered; 3. from a locking spring c and the locking pin d, which, after the sleeve c has been advanced, it snaps into the groove f in the piston b, to secure the protective tube in its position covering the tip.

Claims (1)

PATR\ T-ANSPRU C11: Hohlnadel mit Schutzrohr zur intravenösen Injektion, dadurch gekennzeichnet, daß zum Abdecken der in die Vene eingeführten Hohlnadelspitze zwischen dieser Hohlnadel und der Spitzenmündung eine Vorrichtung eingebaut ist, welche besteht aus: einem die Hohhiadel tragenden Kolben (b) und einer auf letzterem luftdicht verschiebbaren Hülse (c), welche das die Kolbennadel überdeckende Rohr (i) trägt, so daß durch Vorschieben der@Hülse (c) das Rohr (i) über die in die Vene geführte Spitze der Hohlnadel geschoben werden kann, wobei das Rohr (i) in seiner die Spitze überdeckenden Lage durch ein in die Nut (f) einschnappende Feder (e) gesichert wird.PATR \ T-ANSPRU C11: hollow needle with protective tube for intravenous injection, characterized in that for covering the hollow needle tip introduced into the vein a device is installed between this hollow needle and the tip mouth, which consists of: a piston (b) carrying the needle and one on the latter airtight displaceable sleeve (c), which covers the tube covering the plunger needle (i) carries so that by advancing the @ sleeve (c) the tube (i) over the into the vein guided tip of the hollow needle can be pushed, with the tube (i) in its the layer covering the tip by a tongue (e) that snaps into the groove (f) is secured.
DEK79882D Hollow needle Expired DE378629C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEK79882D DE378629C (en) Hollow needle

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEK79882D DE378629C (en) Hollow needle

Publications (1)

Publication Number Publication Date
DE378629C true DE378629C (en) 1923-07-21

Family

ID=7233697

Family Applications (1)

Application Number Title Priority Date Filing Date
DEK79882D Expired DE378629C (en) Hollow needle

Country Status (1)

Country Link
DE (1) DE378629C (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4160450A (en) * 1977-07-15 1979-07-10 Doherty George O Outside-the-needle catheter device with needle housing
US4488545A (en) * 1982-12-10 1984-12-18 Sherwood Medical Company Catheter placement device
EP0201611A1 (en) * 1985-05-10 1986-11-20 B. Braun-SSC AG Two cannulae syringe
EP0306606A1 (en) * 1985-05-10 1989-03-15 B. Braun-SSC AG Disposable two cannulae injection syringe
WO1990014117A1 (en) * 1989-05-16 1990-11-29 Poltavsky Meditsinsky Stomatologichesky Institut Injection needle in individual sterile envelope and a single-use syringe with such needle
US5807338A (en) * 1995-10-20 1998-09-15 United States Surgical Corporation Modular trocar system and methods of assembly

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4160450A (en) * 1977-07-15 1979-07-10 Doherty George O Outside-the-needle catheter device with needle housing
US4488545A (en) * 1982-12-10 1984-12-18 Sherwood Medical Company Catheter placement device
EP0201611A1 (en) * 1985-05-10 1986-11-20 B. Braun-SSC AG Two cannulae syringe
EP0306606A1 (en) * 1985-05-10 1989-03-15 B. Braun-SSC AG Disposable two cannulae injection syringe
WO1990014117A1 (en) * 1989-05-16 1990-11-29 Poltavsky Meditsinsky Stomatologichesky Institut Injection needle in individual sterile envelope and a single-use syringe with such needle
US5807338A (en) * 1995-10-20 1998-09-15 United States Surgical Corporation Modular trocar system and methods of assembly
US5980493A (en) * 1995-10-20 1999-11-09 United States Surgical Corporation Modular trocar system and methods and assembly

Similar Documents

Publication Publication Date Title
DE867732C (en) Ampoule syringe for single use
DE632579C (en) Device for injecting several agents into the blood vessels
DE378629C (en) Hollow needle
DE1057737B (en) Injection ampoule for multiple media and single use
DE1273131B (en) Injection syringe
DE1094408B (en) Needleless injection syringe
DE621770C (en) Cannulas for medical injections into the body tissue as well as for suction from the body tissue
DE635692C (en) Medical syringe
DE818831C (en) Injection syringe for doctors
DE916209C (en) Device for detecting the position of the hollow needle tip in syringes, especially for medical and dental purposes
CH412204A (en) Piping pack
DE1078735B (en) Electric tonometer for ophthalmological purposes
DE338830C (en) Injection syringe
DE439552C (en) Injection syringe
DE349284C (en) Syringes, in particular for medical purposes
DE687476C (en) Injection syringe for single use
DE361788C (en) Angular ampoule with an injection tube
DE858609C (en) Harpoon for catching marine animals such as B. whales
DE550714C (en) Hypodermic injection
DE418232C (en) Injection syringe
DE1064691B (en) Injection ampoule for multiple media and single use
DE330674C (en) Device for treating venereal disease by means of injections
DE562220C (en) Injection ampoule
DE818401C (en) Spray cannula
DE888599C (en) Injection syringe